Elastic- and viscous-like properties of the upper arm estimated by the indentation method
Elastic- and viscous-like properties of the upper arm estimated by the indentation method
复制标题
通过压痕法估计上臂的弹性和粘性特性
DOI：
10.1109/apbme.2003.1302687
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Murayama
中科院分区：
文献类型：
--
作者：
K. Ohsugi;T. Uchiyama;M. Murayama
本研究的目的是使用压痕法估计人体上臂的弹性和粘性特性。健康男性受试者将上臂水平放在桌子上。将压头放置在上臂上方 1-2 毫米处。当压头用机械臂垂直移动时，测量压头的位移和力。首先，使用非线性 Voigt 模型的几种变体对位移和力之间的关系进行建模。基于赫兹理论的模型没有提供压痕响应的良好近似，但所提出的模型却提供了。接下来，研究了上臂的压痕点依赖性。上臂相对较大区域的肌肉硬度（弹性和粘度）保持不变。最后，估计受试者手持重物时上臂的弹性和粘性系数。重量越重，弹性系数和粘性系数越大。结果表明，可以利用该模型估计的弹性和粘性系数来定量评估肌肉硬度。
The purpose of this study is to estimate the elastic-and viscous-like properties of the human upper arm using the indentation method. Healthy male subjects put their upper arms horizontally on a table. An indenter was placed 1-2 mm over the upper arm. When the indenter was moved vertically with a robot arm, the displacement of the indenter and the force were measured. First, the relationships between the displacement and the force were modeled using several variations on the non-linear Voigt model. The model based on Herz's theory did not provide a good approximation of the indentation responses, but the proposed model did. Next, the indentation point dependency of the upper arm was investigated. The muscle hardness (elasticity and viscosity) was invariant in a relatively large area of the upper arm. Finally, the elastic and viscous coefficients of the upper arm were estimated when the subject was holding a weight. The heavier the weight was, the larger the elastic and viscous coefficients were. The results suggest that the muscle hardness can be evaluated quantitatively with the elastic and viscous coefficients estimated by the proposed model.